Medical Dictionary |
A Medical Dictionary of Medical Terminology
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Cervical cancer is cancer that starts in the cells of the cervix. The cervix is part of the female reproductive system. It is the lower, narrow end of the uterus (womb), which opens into the vagina (birth canal).
Cervical cancer usually develops slowly. Before cervical cells become cancer, they start to look abnormal. These cells are called "precancers." If they aren't destroyed or removed, they may become cancer cells that grow out of control and spread to other parts of your body.
Screening tests for cervical cancer can help find abnormal cells so you can get treatment to prevent cervical cancer. These tests can also find cervical cancer early when it's usually easier to treat.
What causes cervical cancer?Almost all cervical cancers are caused by a long-lasting infection with a virus called human papillomavirus (HPV). There are many types of HPV. The types that cause cancer are called "high-risk HPV." High-risk HPV is very common. It can be passed from one person to another through close skin-to-skin touching, usually during vaginal, anal, or oral sex. Most people who are infected have no symptoms and don't know they have it.
If you're infected with high-risk HPV, usually your immune system will get rid of it within a year or two. But if your immune system can't control the infection, it may last for many years. Over time, HPV can turn normal cervical cells into abnormal cells. Without treatment, these cells may keep changing until they become cervical cancer.
Who is more likely to develop cervical cancer?Cervical cancer is most common in people over age 30. If you have a high-risk HPV infection in your cervix, you're more likely to develop cervical cancer if you:
Cervical cancer usually doesn't cause symptoms when it first starts to grow. But when it does cause symptoms, they may include:
If cervical cancer spreads to other parts of your body, symptoms may include:
If you have symptoms or had an abnormal result on a screening test for cervical cancer, your health care provider will do more tests to find out if you have cervical cancer. They will:
Different treatments are available for cervical cancer. The best treatment for you depends on your health, how much cancer you have, whether it has spread, and which treatment you prefer. You may have more than one treatment, including:
Almost all cervical cancer can be prevented by:
You can lower your risk for cervical cancer by not smoking. Using condoms correctly during sex lowers your risk of getting an HPV infection, but doesn't prevent it completely. Condom use has been linked to fewer cases of cervical cancer. If you or your partner is allergic to latex, you can use polyurethane condoms.
NIH: National Cancer Institute
Vaginal cancer is a rare type of cancer that starts in the vagina. The vagina is the canal leading from your cervix (the opening of your uterus) to the outside of your body.
Who is more likely to develop vaginal cancer?You are more likely to develop vaginal cancer if:
Vaginal cancer often doesn't have early symptoms. However, see your health care provider if you notice:
To find out if you have vaginal cancer, your provider will use tests that examine the vagina and other organs in your pelvis. These tests may include:
Vaginal cancer can often be cured if it is found early. Treatments for vaginal cancer may include surgery, radiation therapy, and/or chemotherapy.
Can vaginal cancer be prevented?Vaccines that protect against HPV infection may reduce your risk of vaginal cancer. The vaccines provide the most protection if you get them before you are exposed to HPV. So it's best to get vaccinated before you become sexually active.
NIH: National Cancer Institute
Breast cancer is a cancer that starts in breast tissue. It happens when cells in the breast change and grow out of control. The cells usually form a tumor.
Sometimes the cancer does not spread any further. This is called "in situ." If the cancer spreads outside the breast, the cancer is called "invasive." It may just spread to nearby tissues and lymph nodes. Or the cancer may metastasize (spread to other parts of the body) through the lymph system or the blood.
Breast cancer is the second most common type of cancer in women in the United States. Rarely, it can also affect men.
What are the types of breast cancer?There are different types of breast cancer. The types are based on which breast cells turn into cancer. The types include:
Breast cancer happens when there are changes in the genetic material (DNA). Often, the exact cause of these genetic changes is unknown.
But sometimes these genetic changes are inherited, meaning that you are born with them. Breast cancer that is caused by inherited genetic changes is called hereditary breast cancer.
There are also certain genetic changes that can raise your risk of breast cancer, including changes in the BRCA1 and BRCA2 genes. These two changes also raise your risk of ovarian and other cancers.
Besides genetics, your lifestyle and the environment can affect your risk of breast cancer.
Who is at risk for breast cancer?The factors that raise your risk of breast cancer include:
The signs and symptoms of breast cancer include:
Your health care provider may use many tools to diagnose breast cancer and figure out which type you have:
If these tests show that you have breast cancer, you will have tests that study the cancer cells. These tests help your provider decide which treatment would be best for you. The tests may include:
Another step is staging the cancer. Staging involves doing tests to find out whether the cancer has spread within the breast or to other parts of the body. The tests may include other diagnostic imaging tests and a sentinel lymph node biopsy. This biopsy is done to see whether the cancer has spread to the lymph nodes.
What are the treatments for breast cancer?Treatments for breast cancer include:
You may be able to help prevent breast cancer by making healthy lifestyle changes such as:
If you are at high risk, your health care provider may suggest that you take certain medicines to lower the risk. Some women at very high risk may decide to get a mastectomy (of their healthy breasts) to prevent breast cancer.
It's also important to get regular mammograms. They may be able to identify breast cancer in the early stages, when it is easier to treat.
NIH: National Cancer Institute
Cervical cancer is cancer that starts in the cells of the cervix. The cervix is part of the female reproductive system. It is the lower, narrow end of the uterus (womb), which opens into the vagina (birth canal). Cervical cancer screening is an important part of routine health care for people who have a cervix.
Cervical cancer screening tests look for cancer before you have any symptoms. Cervical cancer usually develops slowly. Before cervical cells become cancer, they start to look abnormal. These cells are called "precancers". If they aren't destroyed or removed, they may become cancer cells that grow out of control and spread to other parts of your body.
Screening can help find abnormal cells so you can get treatment to prevent cervical cancer. These tests can also help to find cervical cancer early when it's usually easier to treat.
What tests screen for cervical cancer?Cervical cancer screening is usually part of a woman's health checkup during a pelvic exam. These tests use a sample of cervical cells that your health care provider collects with a swab:
If your screening tests are abnormal, your provider may do more tests, such as a biopsy. How often you should be screened for cervical cancer and which tests you should get will depend on your age and health history.
What are the possible benefits and harms of cervical cancer screening?Cervical cancer screening saves lives. Screening can detect cervical changes early, lowering your chance of dying from cervical cancer. But, cervical cancer screening has potential harms.
The possible harms of cervical cancer screening include:
The results can sometimes be wrong.
Talk with your provider about how often you should be screened for cervical cancer and which tests you should get. This will depend on your age and health history. If you have a cervix, it's recommended that you have your first Pap smear at age 21 and begin screening with an HPV test at age 25. You may need screening more often if you:
If you are over age 65 and have had regular Pap smear screenings with normal results, your provider may tell you that you no longer need them. If you have HIV, you may need to continue screenings after age 65.
You don't need cervical cancer screening if you had a total hysterectomy (surgery to remove your uterus and cervix) because of a condition that was not cancer. But if your hysterectomy was related to cervical cancer or precancer, ask your provider whether you need screening.
NIH: National Cancer Institute
The uterus, or womb, is the place where a baby grows when a woman is pregnant. If you have an ectopic pregnancy, the fertilized egg grows in the wrong place, outside the uterus, usually in the fallopian tubes. The result is usually a miscarriage.
Ectopic pregnancy can be a medical emergency if it ruptures. Signs of ectopic pregnancy include:
Get medical care right away if you have these signs. Doctors use drugs or surgery to remove the ectopic tissue so it doesn't damage your organs. Many women who have had ectopic pregnancies go on to have healthy pregnancies later.
Dept. of Health and Human Services Office on Women's Health
Infertility means not being able to get pregnant after at least one year of trying (or 6 months if the woman is over age 35). If a woman keeps having miscarriages, it is also called infertility. Female infertility can result from age, physical problems, hormone problems, and lifestyle or environmental factors.
Most cases of infertility in women result from problems with producing eggs. In primary ovarian insufficiency, the ovaries stop functioning before natural menopause. In polycystic ovary syndrome (PCOS), the ovaries may not release an egg regularly or they may not release a healthy egg.
About a third of the time, infertility is because of a problem with the woman. One third of the time, it is a problem with the man. Sometimes no cause can be found.
If you think you might be infertile, see your doctor. There are tests that may tell if you have fertility problems. When it is possible to find the cause, treatments may include medicines, surgery, or assisted reproductive technologies. Happily, many couples treated for infertility are able to have babies.
Dept. of Health and Human Services Office on Women's Health
Infertility means not being able to become pregnant after a year of trying. If a woman can get pregnant but keeps having miscarriages or stillbirths, that's also called infertility.
Infertility is fairly common. After one year of having unprotected sex, about 15% of couples are unable to get pregnant. About a third of the time, infertility can be traced to the woman. In another third of cases, it is because of the man. The rest of the time, it is because of both partners or no cause can be found.
There are treatments that are specifically for men or for women. Some involve both partners. Drugs, assisted reproductive technology, and surgery are common treatments. Happily, many couples treated for infertility go on to have babies.
NIH: National Institute of Child Health and Human Development
A miscarriage is an unexpected loss of pregnancy before the 20th week of pregnancy. Most miscarriages happen very early in the pregnancy, often before a woman even knows she is pregnant.
Factors that may contribute to miscarriage include:
Signs of a miscarriage include vaginal spotting, abdominal pain or cramping, and fluid or tissue passing from the vagina. Bleeding can be a symptom of miscarriage, but many women also have it in early pregnancy and don't miscarry. To be sure, contact your health care provider right away if you have bleeding.
Women who miscarry early in their pregnancy usually do not need any treatment. In some cases, there is tissue left in the uterus. Doctors use a procedure called a dilatation and curettage (D&C) or medicines to remove the tissue.
Counseling may help you cope with your grief. Later, if you do decide to try again, work closely with your health care provider to lower the risks. Many women who have a miscarriage go on to have healthy babies.
NIH: National Institute of Child Health and Human Development
Not all medicines are safe to take when you are pregnant. Some medicines can harm your baby. That includes over-the-counter or prescription drugs, herbs, and supplements.
Always speak with your health care provider before you start or stop any medicine. Not using medicine that you need may be more harmful to you and your baby than using the medicine. For example, many pregnant women take prescription medicines for health problems like diabetes, asthma, seizures, and heartburn. The decision about whether or not to take a medicine depends on the risks and benefits. You and your health care provider should make this choice together.
Pregnant women should not take regular vitamins. They may have too much or too little of the vitamins that you need. There are special vitamins for pregnant women. It is important to take 0.4 mg of folic acid every day before you become pregnant through the first part of your pregnancy. Folic acid helps to prevent birth defects of the baby's brain or spine.
Food and Drug Administration
Tumors during pregnancy are rare, but they can happen. Tumors can be either benign or malignant. Benign tumors aren't cancer. Malignant ones are. The most common cancers in pregnancy are breast cancer, cervical cancer, lymphoma, and melanoma. Cancer itself rarely harms the baby, and some cancer treatments are safe during pregnancy. You and your health care provider will work together to find the best treatment. Your options will depend on how far along the pregnancy is, as well as the type, size, and stage of your cancer.
Another type of tumor that women can get is called a gestational trophoblastic disease (GTD). It happens when a fertilized egg doesn't become a fetus. GTD is not always easy to find. It is usually benign, but some types can be malignant. The most common type of GTD is a molar pregnancy. In its early stages, it may look like a normal pregnancy. You should see your health care provider if you have vaginal bleeding (not menstrual bleeding).
Treatment depends on the type of tumor, whether it has spread to other places, and your overall health.